Seiko Cal. 6639 - 338

This Kinetic model from 1972 features a 41mm Titanium case. It features a Silver dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-d20df739ec11]

Also known as: Tuna, Sea Horse

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

41mm

Case Thickness

14.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Silver

Jewels

25j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1972

Related Models

• Seiko 4540-429
• Seiko 6632-865
• Seiko 5252-110
• Seiko 6115-527
• Seiko 4596-950
• Seiko 6294-433
• Seiko 5624-265
• Seiko 0739-678
• Seiko 3861-189
• Seiko 5610-907
• Seiko 6643-135
• Seiko 7141-192