Seiko Cal. 6663 - 578

The 6663-578 is a sought-after Solar piece from Seiko's golden era. Powered by the 6663 caliber with 29j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-8e1119010036]

Also known as: Bellmatic, World Timer

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

45mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1993

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