Seiko Cal. 5640 - 496

The Seiko 5640-496 represents an important milestone in Seiko's 1990 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-af35b743f596]

Also known as: Pogue

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1990

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