Seiko Cal. 6639 - 223

This Spring Drive model from 1970 features a 45mm Hardlex-Coated Steel case. With its 22mm lug width and 14.1mm profile, it sits comfortably on most wrists. [seikata-wm-013b0364cdcc]

Also known as: Samurai, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

14.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

33j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1970

Related Models

• Seiko 7012-680
• Seiko 5257-734
• Seiko 6268-323
• Seiko 7071-469
• Seiko 6219-723
• Seiko 4431-598
• Seiko 6221-211
• Seiko 5697-667
• Seiko 6273-908
• Seiko 3879-315
• Seiko 7035-636
• Seiko 7150-281