Seiko Cal. 3816 - 334

This Spring Drive model from 1967 features a 36mm Hardlex-Coated Steel case. Powered by the 3816 caliber with 18j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-b9000b479c76]

Also known as: Tuna, Navigator

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

15.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Cream

Jewels

18j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1967

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