Seiko Professional Diver's 1000M

~$5,368 · 1 CHF = 1.234 USD (2026-07-22)

Year

2020

Category

Iconique

Reference

SLA042

Case

ø 52.4 mm · Titane

Material

Titanium

Dial

Black

Movement

Mécanique à remontage automatique Réserve de marche: 50 h, 28800 alt/h

Water resistance

1000 m

Price tier

$5K–$10K

Country

🇯🇵 Japan

Seiko Prospex Professional Diver's 1000M. In 1975, Seiko unveiled a 600m water-resistant dive watch with a titanium monobloc case and an external protective shroud, equipped with an L-shaped gasket making it helium-tight without a decompression valve; its accordion-shaped strap earned it the nickname "Tuna". This year, a 1000m saturation dive watch, with a mechanical movement featuring a bezel made of a new material, joins the Seiko Prospex collection, powered by the 8L35 caliber. The new bezel material, "Ever-Brilliant Steel", is a stainless steel more resistant to corrosion than that used for most high-end watches.