Seiko Cal. 6171 - 721

This Spring Drive model from 1979 features a 45mm Titanium case. Powered by the 6171 caliber with 18j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-0fc901b873d4]

Also known as: Samurai, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1979

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