Seiko Cal. 6637 - 629

The Seiko 6637-629 represents an important milestone in Seiko's 1965 lineup. It features a Black dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-f640a327f069]

Also known as: Panda

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1965

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