Seiko Cal. 4447 - 142

This Quartz model from 1976 features a 39mm Hardlex-Coated Steel case. Powered by the 4447 caliber with 34j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-fb7663e06fa3]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

White

Jewels

34j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1976

Related Models

• Seiko 5694-305
• Seiko 5291-874
• Seiko 6159-497
• Seiko 7063-652
• Seiko 3886-311
• Seiko 6332-864
• Seiko 3867-120
• Seiko 6344-161
• Seiko 6148-946
• Seiko 6115-357
• Seiko 6231-740
• Seiko 5674-134