Tissot · Chemin des Tourelles · Ref T099.407.11.038.00
Named after a street in Le Locle.
Chemin des Tourelles is the road where Tissot built its factory in 1907. The watch is a silver guilloche dial with blue Roman numerals and blue leaf hands on a steel bracelet, with the 80-hour Powermatic 80 inside.

Case
42.0mm
Thickness
10.9mm
Movement
Powermatic 80
Power reserve
80 hours
Crystal
Sapphire
Water resistance
50m
The road
Tissot was founded in Le Locle in 1853 and moved into a factory on the Chemin des Tourelles in 1907. It is still there. Naming a watch after the address is Tissot’s way of saying this is the classical one, and the dial agrees.
The centre is a fine guilloche texture in silver. Roman numerals sit at twelve, three, six and nine in blue, with blue batons between them and blue leaf hands over the top. A small date window sits at three.

Eighty hours
Powermatic 80 is Tissot’s automatic tuned for an 80-hour reserve, about twice what a standard Swiss automatic manages. Put it down on Friday and it is running on Monday. It runs at 21,600 vibrations per hour on 23 jewels, and the caliber is the 80.111.
Those are Tissot’s figures, cross-checked against independent spec databases. No unit has been timed for this page.

The size question
Our catalogue has long listed this watch at 39mm. Two independent spec sheets for this exact reference say 42.0mm, and the proportions in the photograph support them. This page uses 42.0mm. Other Chemin des Tourelles references do come smaller, so check the diameter on the listing you buy.
At 10.9mm thick on a three-link bracelet with polished centre links, it wears as a dress watch that has been scaled up. Water resistance is 50m, for rain and washing hands.

Specs
- Reference
- T099.407.11.038.00
- Case size
- 42.0mm
- Case material
- Stainless Steel
- Movement
- Automatic Powermatic 80 (Caliber 80.111)
- Caliber type
- ETA/Tissot Automatic
- Crystal
- Sapphire Crystal
- Water resistance
- 50m (5 ATM)
- Power reserve
- 80 Hours
- Complications
- Date
- Jewels
- 23 Jewels
- Frequency
- 21,600 vph (3 Hz)
- Origin
- Swiss Made
Specifications as published by Tissot. We research from manufacturer documentation and published sources rather than hands-on testing. Researched 2026-09-03.
Verdict
Tissot’s classical Roman-numeral automatic with an 80-hour reserve and sapphire, in a case larger than the name suggests.
Strengths
- Powermatic 80 with an 80-hour reserve
- Guilloche dial, blue Romans and leaf hands, real dress-watch cues
- Sapphire crystal and a steel bracelet included
- 10.9mm thick sits under a cuff
Trade-offs
- 42.0mm is big for a traditional dress watch
- 50m water resistance
- Case size has been reported inconsistently; verify on the listing
- No Amazon link on this page until a matching listing is verified
Buy it if
Someone who wants a Roman-numeral Swiss automatic for business wear and prefers a larger case.
Skip it if
You want a compact sub-40mm dress watch. Tissot’s Le Locle is the smaller classical option.
FAQ
42.0mm across and about 10.9mm thick, with 21mm lugs, per independent spec databases for this exact reference. Other Chemin des Tourelles references are smaller, so check the diameter on the listing.
Sources
- WatchBase · Tissot T099.407.11.038.00
- Timepiece.com · Tissot T0994071103800
- Tissot · T099.407.11.038.00 product page
Researched and last updated 2026-09-03. We do not test watches in hand; every figure above is traceable to the manufacturer or the sources listed here.
Tissot Chemin des Tourelles Powermatic 80
Reference T099.407.11.038.00 · $500–$1,000
Prices and availability change; the band above is a research figure, so check the current listing.
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