Seiko Cal. 7136 - 553

This Spring Drive model from 1972 features a 42mm PVD Black case. Powered by the 7136 caliber with 27j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-32a2b7426cfc]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Silver

Jewels

27j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1972

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