Seiko Cal. 5631 - 943

Seiko 5631-943

Released in 1968, the Cal. 5631 with design code 943 was part of Seiko's domestic market collection. Powered by the 5631 caliber with 35j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-6a3363d141d1]

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
42mm
Case Thickness
15.7mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
140m
Dial Color
Silver
Jewels
35j
Frequency
36,000 bph
Power Reserve
68 hours
Year
1968

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seikata-wm-6a3363d141d1