Seiko Cal. 6638 - 261

This Automatic model from 1991 features a 41mm Titanium case. Powered by the 6638 caliber with 21j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-e901d5da04df]

Also known as: Shogun

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

41mm

Case Thickness

8.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Champagne

Jewels

21j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1991

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