Seiko Cal. 3810 - 647

This Hand-Winding model from 1980 features a 44mm PVD Black case. Powered by the 3810 caliber with 27j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-92e63028f36d]

Also known as: Crown

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

14.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

27j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1980

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