Seiko Cal. 5648 - 647

The 5648-647 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5648 caliber with 25j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-09e9a9210001]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Champagne

Jewels

25j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1975

Related Models

• Seiko 6189-847
• Seiko 4471-546
• Seiko 3834-132
• Seiko 5630-938
• Seiko 4579-472
• Seiko 6624-809
• Seiko 6625-555
• Seiko 6638-834
• Seiko 0722-595
• Seiko 5284-398
• Seiko 6240-619
• Seiko 7134-290