Seiko Cal. 4587 - 309

This Hand-Winding model from 1993 features a 46mm Gold-Plated case. Powered by the 4587 caliber with 20j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-494809063bf2]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Green

Jewels

20j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1993

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