Seiko Cal. 6635 - 745

The 6635-745 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6635 caliber with 29j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-0a0317d898dc]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Burgundy

Jewels

29j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1979

Related Models

• Seiko 6111-369
• Seiko 7027-299
• Seiko 6371-460
• Seiko 4437-921
• Seiko 5269-981
• Seiko 4443-887
• Seiko 4418-101
• Seiko 3825-628
• Seiko 3874-343
• Seiko 7132-466
• Seiko 7165-825
• Seiko 5635-169