Seiko Cal. 5231 - 771

Seiko 5231-771

This Kinetic model from 1971 features a 45mm Two-Tone case. With its 22mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-5ba6f60794c7]

Also known as: Bellmatic, Crown

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
45mm
Case Thickness
9.8mm
Lug Width
22mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
130m
Dial Color
Cream
Jewels
22j
Frequency
36,000 bph
Power Reserve
38 hours
Year
1971

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