Seiko Cal. 5623 - 738

This Automatic model from 1971 features a 38mm Hardlex-Coated Steel case. Powered by the 5623 caliber with 19j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-9820e278ef03]

Also known as: Bullhead, Arnie

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Cream

Jewels

19j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1971

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