Seiko Cal. 5612 - 923

The Seiko 5612-923 represents an important milestone in Seiko's 1978 lineup. Powered by the 5612 caliber with 33j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-ebd958ed8b6e]

Also known as: Turtle, Arnie

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Cream

Jewels

33j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1978

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