Seiko Cal. 6663 - 846

Released in 1971, the Cal. 6663 with design code 846 was part of Seiko's domestic market collection. Powered by the 6663 caliber with 23j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-4c79ebfb00ac]

Also known as: Monster, Golden Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

39mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

23j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1971

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