Seiko Cal. 6637 - 496

The Seiko 6637-496 represents an important milestone in Seiko's 1980 lineup. It features a Black dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-586b225514ea]

Also known as: Panda, UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1980

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