Seiko Cal. 5671 - 734

This Automatic model from 1973 features a 40mm Titanium case. Powered by the 5671 caliber with 17j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-5f00b7f1094b]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Green

Jewels

17j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1973

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