Seiko Cal. 6646 - 549

This Solar model from 1976 features a 37mm Hardlex-Coated Steel case. Powered by the 6646 caliber with 18j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-41f864a59b05]

Also known as: Samurai, Monster

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1976

Related Models

• Seiko 5237-693
• Seiko 6243-872
• Seiko 4481-910
• Seiko 3835-228
• Seiko 6271-283
• Seiko 7042-128
• Seiko 0768-754
• Seiko 5277-196
• Seiko 3852-726
• Seiko 6219-420
• Seiko 6131-991
• Seiko 6264-194