Seiko Cal. 5648 - 686

The Seiko 5648-686 represents an important milestone in Seiko's 1973 lineup. Powered by the 5648 caliber with 27j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-747babec1116]

Also known as: Tuna, Rally

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

27j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1973

Related Models

• Seiko 6118-587
• Seiko 6656-916
• Seiko 0715-756
• Seiko 5656-476
• Seiko 4586-228
• Seiko 4413-311
• Seiko 6336-809
• Seiko 0779-243
• Seiko 6393-104
• Seiko 4443-247
• Seiko 6255-272
• Seiko 6356-381