Seiko Cal. 6631 - 546

Released in 1996, the Cal. 6631 with design code 546 was part of Seiko's domestic market collection. With its 22mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-426ccc189eb3]

Also known as: Sportsmatic, Navigator

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Green

Jewels

29j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1996

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