Seiko Cal. 3851 - 638

This Quartz model from 1987 features a 39mm Stainless Steel case. Powered by the 3851 caliber with 35j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-0ff005357c8d]

Also known as: Shogun, Sportsmatic

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1987

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