Seiko Cal. 6371 - 198

This Hand-Winding model from 1973 features a 41mm Titanium case. Powered by the 6371 caliber with 17j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-524068c5fa6d]

Also known as: Sumo, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Champagne

Jewels

17j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1973

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