Seiko Cal. 6666 - 257

The Seiko 6666-257 represents an important milestone in Seiko's 1995 lineup. Powered by the 6666 caliber with 23j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-3368a2fcadea]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1995

Related Models

• Seiko 7123-958
• Seiko 4582-614
• Seiko 5289-139
• Seiko 7123-501
• Seiko 5631-876
• Seiko 6285-757
• Seiko 3879-783
• Seiko 7116-713
• Seiko 3859-755
• Seiko 6281-372
• Seiko 0778-578
• Seiko 4455-258