Seiko Cal. 6135 - 740

The Seiko 6135-740 represents an important milestone in Seiko's 1982 lineup. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-d2587bc9fbe1]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1982

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