Seiko Cal. 6271 - 433

This Spring Drive model from 1974 features a 36mm Titanium case. Powered by the 6271 caliber with 18j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-af9c8cf393ea]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Green

Jewels

18j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1974

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