Seiko Cal. 6623 - 364

The Seiko 6623-364 represents an important milestone in Seiko's 1988 lineup. With its 21mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-e13460c4fdc0]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1988

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