Seiko Cal. 6635 - 507

Seiko 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

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