Seiko Cal. 6643 - 261

The Seiko 6643-261 represents an important milestone in Seiko's 1994 lineup. With its 22mm lug width and 8.7mm profile, it sits comfortably on most wrists. [seikata-wm-565d5bcd9da4]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

8.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Navy

Jewels

27j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1994

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