Seiko Cal. 6628 - 638

This Automatic model from 1995 features a 44mm Stainless Steel case. Powered by the 6628 caliber with 20j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-9d1191ad5ef6]

Also known as: Tuna, UFO

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

11.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

40m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1995

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