Seiko Cal. 5237 - 170

Seiko 5237-170

The 5237-170 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5237 caliber with 31j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-8827a59df67b]

Also known as: Sumo, UFO

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
9.2mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
190m
Dial Color
Silver
Jewels
31j
Frequency
36,000 bph
Power Reserve
41 hours
Year
1975

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