Seiko Cal. 5648 - 399

Released in 1969, the Cal. 5648 with design code 399 was part of Seiko's domestic market collection. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-c0800d33a45e]

Also known as: UFO, Arnie

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Cream

Jewels

25j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1969

Related Models

• Seiko 6172-374
• Seiko 6343-659
• Seiko 5615-683
• Seiko 6632-245
• Seiko 4546-676
• Seiko 7187-258
• Seiko 5226-899
• Seiko 6128-555
• Seiko 6276-329
• Seiko 7056-298
• Seiko 4553-981
• Seiko 6225-288