Seiko Cal. 6663 - 902

This Hand-Winding model from 1970 features a 40mm Gold-Plated case. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-013060f1a8c5]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1970

Related Models

• Seiko 6376-210
• Seiko 4492-132
• Seiko 0749-165
• Seiko 6270-339
• Seiko 6184-717
• Seiko 7179-947
• Seiko 6237-251
• Seiko 3837-325
• Seiko 5274-655
• Seiko 0755-457
• Seiko 4465-443
• Seiko 4416-795