Seiko Cal. 6636 - 805

Released in 1978, the Cal. 6636 with design code 805 was part of Seiko's domestic market collection. Powered by the 6636 caliber with 31j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-89a80dfab7fc]

Also known as: Monster, World Timer

Specifications

Movement

Solar

Case Material

Titanium

Case Width

35mm

Case Thickness

13.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Champagne

Jewels

31j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1978

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