Seiko Cal. 7148 - 617

The Seiko 7148-617 represents an important milestone in Seiko's 1981 lineup. Powered by the 7148 caliber with 30j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-234059ef23f0]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

8.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1981

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