Seiko Cal. 5623 - 974

The Seiko 5623-974 represents an important milestone in Seiko's 1966 lineup. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-f0c13fd98abd]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

18j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1966

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