Seiko Cal. 4587 - 657

This Spring Drive model from 1966 features a 41mm Stainless Steel case. Powered by the 4587 caliber with 29j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-cb5d43eaa020]

Also known as: Golden Tuna, Arnie

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

White

Jewels

29j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1966

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