Seiko Cal. 5623 - 738

Seiko 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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