Seiko Cal. 6371 - 742

The 6371-742 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6371 caliber with 19j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-45fda9a44b2a]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1969

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