Seiko Cal. 6665 - 813

The 6665-813 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6665 caliber with 31j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-458fa212db67]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1994

Related Models

• Seiko 4536-923
• Seiko 5226-745
• Seiko 4499-403
• Seiko 6655-239
• Seiko 4427-136
• Seiko 6210-838
• Seiko 7074-705
• Seiko 5214-807
• Seiko 4512-262
• Seiko 6156-935
• Seiko 0746-392
• Seiko 6670-694