Seiko Cal. 4540 - 659

This Spring Drive model from 1977 features a 37mm Stainless Steel case. It features a Black dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-b1a8e279cd16]

Also known as: Goldfeather

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

13.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1977

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