Seiko Cal. 6637 - 650

Released in 1999, the Cal. 6637 with design code 650 was part of Seiko's domestic market collection. It features a White dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-f7760e86bf13]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

White

Jewels

29j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1999

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