Seiko Cal. 3877 - 571

This Hand-Winding model from 1972 features a 38mm Titanium case. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-40cffd4dd443]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

38mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Navy

Jewels

29j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1972

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