Seiko Cal. 5642 - 665

This Hand-Winding model from 1975 features a 40mm Stainless Steel case. Powered by the 5642 caliber with 18j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-63d1518bab9f]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1975

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