Seiko Cal. 3878 - 210

This Spring Drive model from 1982 features a 38mm PVD Black case. Powered by the 3878 caliber with 28j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-3fedaaa1bf3b]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Navy

Jewels

28j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1982

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