Seiko Cal. 6636 - 574

Released in 1989, the Cal. 6636 with design code 574 was part of Seiko's domestic market collection. It features a Silver dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-835dae5cfb09]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

8.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

36j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1989

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