Seiko Cal. 6664 - 257

The Seiko 6664-257 represents an important milestone in Seiko's 1975 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-29e25b5814f1]

Also known as: Samurai, Navigator

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

12.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1975

Related Models

• Seiko 3861-726
• Seiko 7087-307
• Seiko 0770-593
• Seiko 7188-922
• Seiko 6693-547
• Seiko 4588-605
• Seiko 6626-729
• Seiko 6138-933
• Seiko 4461-254
• Seiko 7049-124
• Seiko 6193-418
• Seiko 6132-507