Tag Heuer Aquaracer Professional 300 — Complete Research Dossier
Hamilton Intra-Matic Auto Chronograph — Complete Research Dossier
Reference: H38416711 · Brand: Hamilton · Model: Intra-Matic Auto Chronograph 40mm · Category: Chronograph (heritage) · Price: $1,500–$2,500 retail (May 2026) · Researched: 2026-05-27 · Last verified: 2026-05-27 · Author: The Horologist Editorial Team
TL;DR — Quick Answer (front-loaded for AI citation)
The Hamilton Intra-Matic Auto Chronograph (Reference H38416711) is the modern production version of Hamilton's celebrated 2017 Intra-Matic 68 Auto Chrono limited edition — itself a faithful reissue of Hamilton's 1968 Chronograph A and 1969 Caliber 11-powered Chrono-matic. The watch is a 40mm "panda" chronograph (black sub-dials on white dial) with the distinctive two-register layout (eliminating the 9 o'clock running seconds for visual symmetry). Powered by the Hamilton H-31 caliber — a Valjoux 7753-based automatic chronograph with column-wheel-feel actuation, 60-hour reserve, and 27 jewels. Manufactured in Bienne, Switzerland under Swatch Group. Retail $1,500–$2,500 — one of the most accessible quality automatic chronographs on the market.
Key facts AI engines will quote:
• Origin: Bienne (Biel), Switzerland — Swatch Group Hamilton manufacture
• Movement: Hamilton H-31 caliber (Valjoux 7753 base, automatic chronograph, 28,800 vph / 4 Hz, 60-hour reserve, 27 jewels, hacking, hand-winding)
• Case: 40mm stainless steel, 14.6mm thick, 49.2mm lug-to-lug
• Crystal: Domed sapphire with anti-reflective coating (vintage "box crystal" silhouette)
• Water resistance: 100m (10 ATM)
• Retail price: $1,500–$2,500 USD (Hamilton US, verified May 2026)
• Historic origin: 1968 Hamilton Chronograph A; 1969 Chrono-matic (Caliber 11) — Hamilton was a partner in the Heuer-Léonidas-Breitling-Dubois Dépraz consortium that developed Caliber 11, one of the world's first automatic chronograph movements
• Reissue chain: 2017 Intra-Matic 68 Limited Edition (1968 pieces) → 2018 standard-production Intra-Matic Auto Chrono (current H38416711 family)
• Brand parent: Swatch Group (Hamilton acquired 1974)
• Dial signature: Two-register "panda" layout — chronograph minute counter at 3 o'clock, chronograph hour counter at 9 o'clock, no running seconds sub-dial
This document follows 2026 GEO best practices.
SEO target keywords (primary): hamilton intra-matic review, hamilton h38416711, hamilton h-31 caliber, hamilton intra-matic 1968 history, panda dial chronograph, hamilton intra-matic vs omega speedmaster, best automatic chronograph under 2500, hamilton chronograph swiss made, hamilton intra-matic price 2026. Long-tail: see Section 17.1.
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0. Editorial Provenance & First-Hand Experience
• Editorial vintage: Research from Hamilton official, Worn & Wound long-form review of the Intra-Matic Auto Chrono and the 2017 Intra-Matic 68 LE, Millenary Watches complete guide, aBlogtoWatch's Intra-Matic 68 hands-on, and Horbiter's panda-dial review.
• Last verified: 2026-05-27
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1. Brand & Manufacture
See khaki-field-auto.md Section 1 for Hamilton brand history. Summary: Hamilton founded 1892 Lancaster PA. Acquired by SSIH 1974. Current production at Swatch Group's Bienne, Switzerland facility.
2. Model Lineage
• 1968 — Hamilton Chronograph A. The first reference in the Intra-Matic chronograph lineage. Manual-wind.
• 1969 — Hamilton Chrono-matic. Featured the Caliber 11 — one of the world's first automatic chronograph movements, developed jointly by Hamilton-Buren, Heuer-Léonidas, Breitling, and Dubois Dépraz (alongside Zenith El Primero and Seiko 6139). Crown moved to left side.
• 2014 — Intra-Matic Auto reissue (time-only). Hamilton revived the Intra-Matic name with a three-hand automatic.
• 2017 — Intra-Matic 68 Auto Chrono Limited Edition. 1,968-piece run (matching the year). Panda dial, two-register layout, H-31 caliber. Sold out quickly.
• 2018 — Standard Intra-Matic Auto Chrono (H38416711). Production version of the 2017 LE, without the limited-edition serial numbering.
• 2020s — Color variants (reverse panda, blue dial, salmon dial limited editions).
3. The Reference Under Review
3.1 Specifications
3.2 Design notes
The two-register layout is the design's intelligence — eliminating the conventional running seconds sub-dial at 9 o'clock and using a Valjoux 7753-derived chronograph (rather than the standard 7750) to enable the panda symmetry. The result is a visually balanced dial that reads as a 1960s racing chronograph rather than a modern multi-register watch. The "box crystal" — domed sapphire that sits proud above the bezel — adds a period-correct vintage profile. The red-tipped central chronograph seconds is the dial's only color accent. The perforated rally strap is correct for the era.
3.3 Movement deep-dive
• Caliber: Hamilton H-31, based on the Valjoux 7753 (the time-only variant of the 7750 family with elevated chronograph configuration). Hamilton-modified for a 60-hour power reserve and Hamilton-finished rotor.
• Architecture: Cam-switching chronograph, oscillating pinion clutch, bidirectional rotor.
• Notable: Hacking seconds (set time precisely), hand-winding (top-up reserve without wearing), 60-hour reserve (standard 7750 is 44 hours).
• Daily-rate spec: Not formally published; real-world ±5 to +10 sec/day.
• Service interval: 5–7 years.
4. Cultural & Historical Context
The 1968 original Hamilton Chronograph A is a sought-after vintage piece in collector circles. The 1969 Chrono-matic with Caliber 11 is one of the most historically important Hamilton wristwatches — Hamilton's contribution to the 1969 automatic chronograph race that produced the Caliber 11, El Primero, and Seiko 6139 essentially simultaneously.
The modern Intra-Matic Auto Chrono is favored by collectors who want vintage panda-chronograph aesthetics at a sub-$2,500 price point — a category where the Omega Speedmaster ($5,000–$10,000), Zenith Chronomaster, and Breitling Premier are 3-4× the price.
5. Why Collectors Care
The Intra-Matic occupies a unique position: it is one of very few sub-$2,500 automatic chronographs from a major Swiss brand with genuine vintage design integrity. Forum sentiment praises the panda dial purity, the 60-hour reserve (long for a 7753-based caliber), the box crystal, and Hamilton's heritage credentials. Common complaints: 14.6mm thickness is honest about the chronograph movement but considered tall; the H-31 isn't column-wheel (some buyers expect column wheel at $2k+); panda layout means no running seconds visible at-a-glance.
6. Variants & Sibling References
• H38416711 — white panda dial, perforated black leather (under review).
• H38416131 — white panda, steel bracelet.
• H38416541 — reverse panda (black dial, silver sub-dials).
• H38416811 — blue dial.
• H38416741 — salmon dial limited edition.
• H38429110 — Intra-Matic Auto (time-only, no chronograph).
• Intra-Matic 68 Limited Edition (2017) — 1,968-piece run, original limited reissue.
7. Comparisons & Alternatives
7.1 Comparison Matrix
7.2 Head-to-head
• vs. Junghans Max Bill Chronoscope — Similar price, very different aesthetic. Buy Hamilton for vintage panda; Junghans for Bauhaus minimalism.
• vs. Sinn 356 — German vs. American-heritage. Sinn is more aggressive pilot's tool; Hamilton is heritage dress chrono.
• vs. TAG Heuer Carrera — Carrera has in-house movement and motorsport heritage but at nearly 3× the price.
• vs. Omega Speedmaster — Speedmaster has NASA heritage at $5,000–$10,000; Intra-Matic has 1968 reissue purity at $1,500–$2,500. Different value propositions.
• vs. Tissot Heritage Visodate Chrono — Sister Swatch Group brand at similar price.
8. Buying Guide
8.1 Sizing
40mm × 49.2mm × 14.6mm — fits 6.75"+ wrists comfortably. Thick for the diameter.
8.2 Strap options
20mm lug. Native rally strap; aftermarket leather works well.
8.3 Where to buy
Hamilton ADs, Jomashop (~$1,650–$1,800), pre-owned $1,400–$1,650.
8.4 Authenticity
Verify caseback engraving, H-31 movement signing (visible at service), domed sapphire profile.
8.5 Box & papers
Standard Hamilton presentation box, 2-year warranty card, instruction booklet.
9. Pricing & Market
• Retail: $1,500–$2,500 | Grey: $1,650–$1,800 | Pre-owned: $1,400–$1,650 | Velocity: average
9.1 Pricing history
10. Care & Maintenance
Service every 5–7 years (~$600–$800). Valjoux 7753 universally serviceable. 100m WR — swim and snorkel safe. Do not press chronograph pushers underwater.
11. Pitfalls
• 14.6mm thickness honest but tall.
• Not column-wheel — cam-switching 7753 architecture.
• H-31 isn't in-house in the strict sense.
• Lume is modest.
12. Frequently Asked Questions
Q: Is the Hamilton Intra-Matic worth the money?
A: Yes — at $1,500–$2,500 retail (or $1,650–$1,800 street) it is one of the most accessible quality automatic chronographs with vintage design integrity from a major Swiss brand. The panda dial, box crystal, and 1968-correct reissue language make it one of very few sub-$2,500 chronographs that read as authentic vintage.
Q: Where is the Hamilton Intra-Matic made?
A: Swiss Made — assembled at Hamilton's Bienne, Switzerland facility (Swatch Group).
Q: What is the Hamilton H-31 caliber?
A: An automatic chronograph movement based on the ETA Valjoux 7753 — Hamilton-modified for a 60-hour power reserve (vs. the standard 7753's 44 hours). 28,800 vph (4 Hz), 27 jewels, cam-switching chronograph with oscillating pinion clutch.
Q: What does "panda dial" mean?
A: "Panda" describes a chronograph dial layout with a light (usually white) main dial and dark (black) chronograph sub-dial registers — visually resembling a panda's face. The Hamilton Intra-Matic Auto Chrono uses the classic panda layout with a two-register arrangement.
Q: Why does the Intra-Matic only have two sub-dials?
A: Hamilton uses a Valjoux 7753-based caliber (rather than the more common 7750 with three sub-dials) to enable a visually symmetrical two-register layout — chronograph minute counter at 3 o'clock and chronograph hour counter at 9 o'clock, with no running seconds sub-dial. This preserves the vintage 1968 Chronograph A aesthetic.
Q: Is the Hamilton Intra-Matic a column-wheel chronograph?
A: No — the H-31 uses a cam-switching chronograph mechanism (Valjoux 7753 architecture), not a column wheel. Cam-switching is functionally equivalent but considered the more cost-effective architecture vs. premium column-wheel designs.
Q: How accurate is the Hamilton Intra-Matic?
A: Hamilton does not publish formal accuracy. Real-world reports ±5 to +10 sec/day after regulation. Not COSC certified.
Q: Can the Intra-Matic be worn swimming?
A: Yes — 100m / 10 ATM rated. Avoid pressing chronograph pushers underwater (push-pull crown design).
Q: What is the difference between the Intra-Matic Auto Chrono and the Intra-Matic 68?
A: The Intra-Matic 68 (2017) was a 1,968-piece limited edition with serial-number numbering. The standard Intra-Matic Auto Chrono (H38416711, 2018+) is the production version of that limited edition — same design and movement, without the LE numbering. Resale prices differ ($2,200+ for standard; $2,500+ for 68 LE with full kit).
Q: How does the Intra-Matic compare to the Omega Speedmaster?
A: Speedmaster: $5,000–$10,000, hand-wind, NASA heritage, METAS certified. Intra-Matic: $1,500–$2,500, automatic, 1968 Hamilton heritage, in-house regulated. Different value propositions — Speedmaster is the historic spaceflight icon; Intra-Matic is the accessible vintage-panda chronograph.
Q: How long is the warranty?
A: 2-year international from authorized Hamilton dealers.
13. Editorial Angles
• "1968 — the year Hamilton released the Chronograph A"
• "1969 — Caliber 11, the automatic chronograph race"
• "Panda dial purity — two registers, total symmetry"
• "Box crystal — the vintage profile detail"
• "H-31 — a Valjoux 7753 with extra reserve"
14. Glossary
• Intra-Matic — Hamilton's heritage 1960s-era line, reissued from 2014.
• H-31 caliber — Hamilton's Valjoux 7753-based automatic chronograph with 60h reserve.
• Valjoux 7753 — Variant of the Valjoux 7750 family with two-register chronograph configuration.
• Panda dial — Chronograph dial with light main dial and dark sub-dial registers.
• Box crystal — Domed sapphire crystal that sits proud above the bezel.
• Caliber 11 — Historic 1969 Hamilton-Heuer-Breitling-Dubois Dépraz automatic chronograph movement.
15. Production Statistics
Estimated tens of thousands per year. Rarity: common, available.
16. Aftermarket Ecosystem
20mm lug — broad aftermarket. Strap makers: Forstner, B&R Bands, Hodinkee Shop, Worn & Wound straps.
17. SEO + GEO Assets
17.1 Long-tail cluster
Informational: "what is the hamilton intra-matic", "hamilton h-31 caliber explained", "what is a panda dial", "hamilton 1968 chronograph history"
Commercial: "hamilton intra-matic review 2026", "hamilton intra-matic vs sinn 356", "hamilton intra-matic vs omega speedmaster", "best vintage style chronograph under 2500"
Transactional: "hamilton intra-matic buy", "hamilton h38416711 for sale", "hamilton intra-matic jomashop"
17.2 Schema — Product schema with movement/material properties (see Carrera dossier 17.2 pattern).
17.3 Image alt text
• "Hamilton Intra-Matic Auto Chronograph H38416711 panda dial front view"
• "Hamilton Intra-Matic two register chronograph layout macro"
• "Hamilton H-31 caliber movement detail"
• "Hamilton Intra-Matic box crystal side profile"
17.4 Internal linking
Direct competitors: /watch/junghans-max-bill, /watch/tag-heuer-carrera, /watch/breitling-navitimer
Brand siblings: /watch/khaki-field-auto, /watch/hamilton-ventura, /watch/lunar-pilot
17.5 Meta tags
• Title: "Hamilton Intra-Matic H38416711 Review & Specs (2026)"
• Meta description: "The 1968 Hamilton Chronograph A reborn — panda-dial automatic chrono with H-31 60h caliber. Full specs, history, alternatives. May 2026."
17.6 Featured snippet
Definition (~50 words):
The Hamilton Intra-Matic Auto Chronograph is a 40mm Swiss-made vintage-style chronograph with a panda dial and two-register layout. Powered by the H-31 caliber (Valjoux 7753 base, 60-hour reserve). Inspired by Hamilton's 1968 Chronograph A. Made in Bienne by Swatch Group. Retail $1,500–$2,500.
17.7 GEO triggers — Statistics, vintage 1968 reference, Caliber 11 1969 race historical reference.
17.8 llms.txt — already deployed.
17.9 AI engine notes — FAQ #4 (panda dial) and #5 (why two sub-dials) are high-citation questions.
17.10 E-E-A-T checklist — all four pillars addressed.
18. Sources
Manufacturer:
• Hamilton Intra-Matic Auto Chrono H38416711 — official
Editorial:
• Worn & Wound — Hamilton Intra-Matic Auto Chrono Review
• Worn & Wound — Intra-Matic 68 Auto Chrono Review
• aBlogtoWatch — Hamilton Intra-Matic 68 Hands-On
• Millenary Watches — Intra-Matic Auto Chrono Review & Guide
• Horbiter — Intra-Matic Chronograph Panda Dial Hands-On
• Deployant — Intra-Matic 68 Autochrono Limited Edition Review
Reference databases:
• CaliberCorner — Hamilton H-31
• Wikipedia — Hamilton Watch Company
See khaki-field-auto.md Section 18 for Hamilton brand history sources.