Seiko Cal. 5251 - 688

This Solar model from 1967 features a 42mm PVD Black case. Powered by the 5251 caliber with 21j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-bbeae6c760f4]

Also known as: Tuna, Sea Horse

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

42mm

Case Thickness

13.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1967

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