Seiko Cal. 5645 - 817

This Solar model from 1971 features a 37mm Two-Tone case. Powered by the 5645 caliber with 30j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-aba796a4db3f]

Also known as: Monster

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1971

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