Seiko Cal. 6138 - 288

The Seiko 6138-288 represents an important milestone in Seiko's 1968 lineup. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-91dd5d24b64a]

Also known as: Sumo, Emperor

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

45mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1968

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