Seiko Cal. 3878 - 934

The Seiko 3878-934 represents an important milestone in Seiko's 1974 lineup. Powered by the 3878 caliber with 20j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-ae37979a7114]

Also known as: Flighty

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

35mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Silver

Jewels

20j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1974

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