Seiko Cal. 6635 - 440

This Automatic model from 1997 features a 43mm PVD Black case. Powered by the 6635 caliber with 23j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-ef227218666f]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

43mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1997

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