Seiko Cal. 5644 - 247

The Seiko 5644-247 represents an important milestone in Seiko's 1981 lineup. Powered by the 5644 caliber with 34j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-f60ecf9402da]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

White

Jewels

34j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1981

Related Models

• Seiko 7169-426
• Seiko 6657-212
• Seiko 5640-988
• Seiko 6338-515
• Seiko 6384-944
• Seiko 6344-725
• Seiko 5635-398
• Seiko 3838-219
• Seiko 6357-944
• Seiko 0766-480
• Seiko 6399-597
• Seiko 5676-194