Seiko Cal. 5645 - 903

Seiko 5645-903

This Spring Drive model from 1968 features a 43mm Two-Tone case. With its 22mm lug width and 8.3mm profile, it sits comfortably on most wrists. [seikata-wm-bab6635770d5]

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
43mm
Case Thickness
8.3mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
190m
Dial Color
Silver
Jewels
22j
Frequency
21,600 bph
Power Reserve
69 hours
Year
1968

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