Seiko Cal. 6635 - 507

The Seiko 6635-507 represents an important milestone in Seiko's 1995 lineup. Powered by the 6635 caliber with 34j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-c0c4c09ccce0]

Also known as: Bellmatic, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Black

Jewels

34j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1995

Related Models

• Seiko 5250-774
• Seiko 4499-548
• Seiko 6615-566
• Seiko 5271-200
• Seiko 7041-815
• Seiko 5679-276
• Seiko 7173-838
• Seiko 6219-799
• Seiko 7063-928
• Seiko 5247-718
• Seiko 3888-884
• Seiko 6313-443