Seiko Cal. 3851 - 157

This Automatic model from 1984 features a 39mm Stainless Steel case. Powered by the 3851 caliber with 22j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-d45abcdc67ec]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

9.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1984

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