Seiko Cal. 6663 - 257

This Hand-Winding model from 1969 features a 46mm Two-Tone case. Powered by the 6663 caliber with 24j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-6a414b09e2bf]

Also known as: Silverwave, World Timer

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

12.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Burgundy

Jewels

24j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1969

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