Seiko Cal. 6628 - 437

The Seiko 6628-437 represents an important milestone in Seiko's 1987 lineup. Powered by the 6628 caliber with 28j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-abb59de97854]

Also known as: Shogun, Rally

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Navy

Jewels

28j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1987

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