Seiko Cal. 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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