Seiko vs Rado: Which Is Better?

Seiko builds its own movements top to bottom. The Prospex SPB143 uses the in-house 6R35 automatic with a 70-hour power reserve, a sapphire crystal, a super-hard-coated steel case, and a true 200m (20 ATM) dive rating — made in Japan, in the $1,000–$1,500 band.

The range scales down without losing the in-house movement: the Prospex Alpinist (6R35, sapphire, 200m) sits in the $500–$1,000 band, and the 5 Sports 5KX (4R36 automatic, 100m) is in the $250–$500 band. What you give up at the lower tiers is mostly the crystal — the 5 Sports and Presage Cocktail Time use Seiko's Hardlex rather than sapphire.

Rado's signature is case material. The Captain Cook High-Tech Ceramic wears a ceramic case that ordinary daily contact will not scratch, over a 300m (30 ATM) water-resistance rating — higher than any Seiko in our catalogue. The True Square goes further with a monobloc high-tech ceramic case.

Inside, Rado uses Swiss automatics built on the ETA C07.611 base with 80-hour power reserves — about 10 hours more than Seiko's 6R35 and nearly double the 41 hours of Seiko's 4R-series movements. Both Rados in our catalogue sit in the $1,500–$2,500 band.

On pure specification per dollar, Seiko wins: an in-house automatic, sapphire, and 200m arrives a full price band below Rado's entry point. Rado's case: scratchproof ceramic, a longer 80-hour reserve, and 300m ratings. If you keep watches for decades and hate hairline scratches, the ceramic case is a genuine functional difference, not just styling.