Seiko Cal. 5647 - 738

This Automatic model from 1967 features a 40mm Stainless Steel case. Powered by the 5647 caliber with 26j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-7dfe6b4e803a]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Cream

Jewels

26j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1967

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