Seiko Cal. 6649 - 740

The Seiko 6649-740 represents an important milestone in Seiko's 1985 lineup. Powered by the 6649 caliber with 30j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-ce0a4efd266b]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

11.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1985

Related Models

• Seiko 6367-624
• Seiko 6697-775
• Seiko 3836-215
• Seiko 6299-499
• Seiko 0733-952
• Seiko 7137-434
• Seiko 6251-877
• Seiko 4572-778
• Seiko 6382-649
• Seiko 5255-546
• Seiko 7070-595
• Seiko 6367-636