Seiko Cal. 5237 - 648

The 5237-648 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5237 caliber with 23j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-c1ddf17dde3f]

Also known as: Arnie

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1975

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