Seiko Cal. 5635 - 591

The Seiko 5635-591 represents an important milestone in Seiko's 1996 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-22e9c74f5cd4]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

11.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1996

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