Seiko Cal. 6636 - 863

The Seiko 6636-863 represents an important milestone in Seiko's 1969 lineup. Powered by the 6636 caliber with 35j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-d181a311c2cf]

Also known as: Turtle, Panda

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

45mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Green

Jewels

35j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1969

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