Seiko Cal. 6660 - 637

This Spring Drive model from 1984 features a 46mm Gold-Plated case. Powered by the 6660 caliber with 18j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-0673943a8242]

Also known as: Panda

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

White

Jewels

18j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1984

Related Models

• Seiko 6213-107
• Seiko 6613-123
• Seiko 5266-256
• Seiko 4433-734
• Seiko 7155-675
• Seiko 4432-458
• Seiko 3897-580
• Seiko 0770-423
• Seiko 6192-157
• Seiko 3866-955
• Seiko 7050-588
• Seiko 5628-625