Seiko Cal. 6644 - 111

This Hand-Winding model from 1972 features a 36mm Gold-Plated case. Powered by the 6644 caliber with 30j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-af989ff1e019]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

13.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Burgundy

Jewels

30j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1972

Related Models

• Seiko 4574-988
• Seiko 0738-972
• Seiko 6163-620
• Seiko 6164-941
• Seiko 6318-675
• Seiko 4495-878
• Seiko 6246-783
• Seiko 6659-613
• Seiko 6671-702
• Seiko 7043-785
• Seiko 0775-735
• Seiko 0785-491