Seiko Cal. 3870 - 937

The Seiko 3870-937 represents an important milestone in Seiko's 1977 lineup. Powered by the 3870 caliber with 25j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-b56698b6de38]

Also known as: Silverwave, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Champagne

Jewels

25j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1977

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