Seiko Cal. 6637 - 330

This Hand-Winding model from 1987 features a 44mm Titanium case. Powered by the 6637 caliber with 27j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-746bc1b940a0]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

8.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Champagne

Jewels

27j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1987

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