Seiko Cal. 5663 - 437

The Seiko 5663-437 represents an important milestone in Seiko's 1967 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-bb58aeab747f]

Also known as: Shogun

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1967

Related Models

• Seiko 6614-589
• Seiko 6664-525
• Seiko 6347-328
• Seiko 6688-927
• Seiko 5641-875
• Seiko 4439-822
• Seiko 3839-986
• Seiko 7026-799
• Seiko 6215-157
• Seiko 6199-787
• Seiko 4582-667
• Seiko 6228-460