Seiko Cal. 6644 - 275

This Hand-Winding model from 1988 features a 39mm PVD Black case. Powered by the 6644 caliber with 23j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-544ffb8fbf3f]

Also known as: Monster, Emperor

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Champagne

Jewels

23j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1988

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