Seiko Cal. 3878 - 376

The Seiko 3878-376 represents an important milestone in Seiko's 1975 lineup. It features a Black dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-8a7f7b03d0c8]

Also known as: Bellmatic, Emperor

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

29j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1975

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