Seiko Cal. 6637 - 599

The 6637-599 is a sought-after Quartz piece from Seiko's golden era. It features a Silver dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-d93e42b52c49]

Also known as: Crown

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

39mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1989

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