Seiko Cal. 6644 - 440

This Kinetic model from 1983 features a 41mm Hardlex-Coated Steel case. Powered by the 6644 caliber with 27j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-18efc7e47589]

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Black

Jewels

27j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1983

Related Models

• Seiko 7137-372
• Seiko 6612-220
• Seiko 6628-446
• Seiko 4554-372
• Seiko 6235-533
• Seiko 6630-579
• Seiko 6293-511
• Seiko 7174-144
• Seiko 4545-280
• Seiko 6166-869
• Seiko 0798-115
• Seiko 3896-793