Seiko Cal. 6643 - 185

The Seiko 6643-185 represents an important milestone in Seiko's 1982 lineup. It features a Navy dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-feda0a4c5efb]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1982

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