Seiko Cal. 5637 - 400

Seiko 5637-400

This Hand-Winding model from 1973 features a 44mm Stainless Steel case. With its 18mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-11108319eaab]

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
44mm
Case Thickness
10.5mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
170m
Dial Color
Burgundy
Jewels
28j
Frequency
28,800 bph
Power Reserve
43 hours
Year
1973

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seikata-wm-11108319eaab