Seiko Cal. 0731 - 309

Seiko 0731-309

This Spring Drive model from 1977 features a 46mm Gold-Plated case. With its 22mm lug width and 10.3mm profile, it sits comfortably on most wrists. [seikata-wm-ea15062546b5]

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
10.3mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
90m
Dial Color
Burgundy
Jewels
34j
Frequency
36,000 bph
Power Reserve
67 hours
Year
1977

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seikata-wm-ea15062546b5