Seiko Cal. 6644 - 600

This Quartz model from 1972 features a 46mm Hardlex-Coated Steel case. Powered by the 6644 caliber with 27j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-867f99413078]

Also known as: World Timer, Emperor

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Cream

Jewels

27j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1972

Related Models

• Seiko 7040-868
• Seiko 0765-407
• Seiko 6227-712
• Seiko 6188-484
• Seiko 7039-222
• Seiko 5258-473
• Seiko 7051-894
• Seiko 6239-360
• Seiko 4461-112
• Seiko 6180-831
• Seiko 7061-225
• Seiko 7046-162