Seiko Cal. 6641 - 424

The Seiko 6641-424 represents an important milestone in Seiko's 1978 lineup. Powered by the 6641 caliber with 27j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-ef81c0ad429a]

Also known as: Goldfeather, Emperor

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

27j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1978

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