Seiko Cal. 3839 - 342

The Seiko 3839-342 represents an important milestone in Seiko's 1965 lineup. Powered by the 3839 caliber with 35j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-efe17a0ebb2a]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

34mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1965

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