Seiko Cal. 3827 - 493

This Spring Drive model from 1977 features a 43mm PVD Black case. Powered by the 3827 caliber with 36j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-534e5eeb86f1]

Also known as: Rally

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Green

Jewels

36j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1977

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