Seiko Cal. 6645 - 501

This Solar model from 1967 features a 37mm Stainless Steel case. Powered by the 6645 caliber with 20j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-42db0fb7fe24]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1967

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