Seiko Cal. 6637 - 584

The Seiko 6637-584 represents an important milestone in Seiko's 1986 lineup. It features a Burgundy dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-299d6997a87b]

Also known as: Crown, Arnie

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

34j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1986

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