Seiko Cal. 5671 - 833

This Hand-Winding model from 1971 features a 34mm Titanium case. Powered by the 5671 caliber with 22j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-650aa06ffc83]

Also known as: Sumo, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1971

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