Seiko Cal. 5638 - 444

Seiko 5638-444

This Automatic model from 1981 features a 37mm Two-Tone case. With its 19mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-2091b76721b2]

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
37mm
Case Thickness
15.5mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
180m
Dial Color
Silver
Jewels
36j
Frequency
21,600 bph
Power Reserve
49 hours
Year
1981

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seikata-wm-2091b76721b2