Seiko Cal. 3840 - 127

This Spring Drive model from 1973 features a 45mm PVD Black case. Powered by the 3840 caliber with 34j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-8334514e8996]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Silver

Jewels

34j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1973

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