Seiko Cal. 0723 - 647

The Seiko 0723-647 represents an important milestone in Seiko's 1986 lineup. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-c195c320cb36]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

33j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1986

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