Seiko Cal. 4537 - 115

This Hand-Winding model from 1969 features a 42mm Stainless Steel case. Powered by the 4537 caliber with 27j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-5019cb1b3bc4]

Also known as: Tuna, Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1969

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