Seiko Cal. 6643 - 528

This Automatic model from 1998 features a 43mm PVD Black case. Powered by the 6643 caliber with 32j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-3dafe75906d2]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

43mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Burgundy

Jewels

32j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1998

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