Seiko Cal. 5240 - 220

The 5240-220 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5240 caliber with 19j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-a21845eebdf8]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1968

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