Seiko Cal. 6634 - 423

The Seiko 6634-423 represents an important milestone in Seiko's 1991 lineup. Powered by the 6634 caliber with 25j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-4d435cc484cd]

Also known as: Emperor

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

25j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1991

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