Seiko Cal. 6639 - 745

The 6639-745 is a sought-after Kinetic piece from Seiko's golden era. The Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-68a69c36d21b]

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

Burgundy

Jewels

25j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1965

Related Models

• Seiko 3840-100
• Seiko 7043-705
• Seiko 6131-823
• Seiko 7035-131
• Seiko 7135-744
• Seiko 6399-540
• Seiko 0783-687
• Seiko 6317-896
• Seiko 7021-920
• Seiko 6183-513
• Seiko 0788-433
• Seiko 5269-758