Seiko Cal. 7136 - 526

The Seiko 7136-526 represents an important milestone in Seiko's 1977 lineup. Powered by the 7136 caliber with 33j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-304855041fd8]

Also known as: Sumo, Arnie

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Black

Jewels

33j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1977

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