Seiko Cal. 0740 - 237

Seiko 0740-237

The 0740-237 is a sought-after Automatic piece from Seiko's golden era. Powered by the 0740 caliber with 31j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-b9af3780eef4]

Also known as: Sumo

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
15.0mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
120m
Dial Color
Navy
Jewels
31j
Frequency
36,000 bph
Power Reserve
44 hours
Year
1971

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