Seiko Cal. 3878 - 308

The Seiko 3878-308 represents an important milestone in Seiko's 1976 lineup. It features a Black dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-90719d35ce66]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Black

Jewels

30j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1976

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