Seiko Cal. 6639 - 950

This Automatic model from 1985 features a 44mm Gold-Plated case. Powered by the 6639 caliber with 21j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-6dacc5774322]

Also known as: Tuna, Sea Horse

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

9.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1985

Related Models

• Seiko 3867-920
• Seiko 6267-196
• Seiko 6265-955
• Seiko 6211-706
• Seiko 5277-885
• Seiko 7059-416
• Seiko 4536-282
• Seiko 6164-704
• Seiko 5232-815
• Seiko 6190-959
• Seiko 6366-858
• Seiko 5632-561