Seiko Cal. 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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