Seiko Cal. 3838 - 704

The Seiko 3838-704 represents an important milestone in Seiko's 1971 lineup. Powered by the 3838 caliber with 18j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-5ef1056d8c3b]

Also known as: Sumo, Helmet

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

8.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Champagne

Jewels

18j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1971

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