Seiko Cal. 6631 - 483

This Spring Drive model from 1991 features a 38mm Titanium case. Powered by the 6631 caliber with 26j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-0dfdc80c9c84]

Also known as: Navigator, Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1991

Related Models

• Seiko 6357-136
• Seiko 4551-122
• Seiko 6216-671
• Seiko 6153-496
• Seiko 3865-343
• Seiko 4569-468
• Seiko 6123-253
• Seiko 5272-578
• Seiko 3841-406
• Seiko 6129-303
• Seiko 7082-692
• Seiko 6198-393