Seiko Cal. 7157 - 551

This Solar model from 1972 features a 38mm Stainless Steel case. Powered by the 7157 caliber with 23j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-2b3e720cd6c2]

Also known as: Tuna, Emperor

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

120m

Dial Color

White

Jewels

23j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1972

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