Seiko Cal. 4537 - 771

Seiko 4537-771

This Spring Drive model from 1971 features a 46mm Stainless Steel case. Powered by the 4537 caliber with 33j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-f07a11a36d93]

Also known as: Goldfeather, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
46mm
Case Thickness
12.8mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
190m
Dial Color
Cream
Jewels
33j
Frequency
21,600 bph
Power Reserve
66 hours
Year
1971

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