Seiko Cal. 7146 - 688

The Seiko 7146-688 represents an important milestone in Seiko's 1976 lineup. Powered by the 7146 caliber with 26j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-c74841182fe9]

Also known as: Monster, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

13.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Silver

Jewels

26j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1976

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