Seiko Cal. 5271 - 260

This Hand-Winding model from 1966 features a 40mm Stainless Steel case. Powered by the 5271 caliber with 25j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-40d615d829c7]

Also known as: Monster, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

12.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Silver

Jewels

25j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1966

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