Seiko Cal. 5638 - 576

Seiko 5638-576

This Automatic model from 1983 features a 34mm Two-Tone case. With its 20mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-b73dcf57204d]

Also known as: Baby Tuna, Arnie

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
34mm
Case Thickness
11.2mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
30m
Dial Color
Navy
Jewels
27j
Frequency
21,600 bph
Power Reserve
40 hours
Year
1983

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