Seiko Cal. 6648 - 698

The 6648-698 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6648 caliber with 36j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-4514b178aa7b]

Also known as: Panda, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

170m

Dial Color

Burgundy

Jewels

36j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1971

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