Seiko Cal. 3870 - 348

The Seiko 3870-348 represents an important milestone in Seiko's 1965 lineup. Powered by the 3870 caliber with 31j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-49e511949ae3]

Also known as: World Timer

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1965

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