Seiko Cal. 4590 - 931

Released in 1970, the Cal. 4590 with design code 931 was part of Seiko's domestic market collection. It features a White dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-c84a5c35b1cd]

Also known as: UFO, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

White

Jewels

36j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1970

Related Models

• Seiko 5221-122
• Seiko 5218-116
• Seiko 4596-575
• Seiko 6347-400
• Seiko 7199-649
• Seiko 6119-533
• Seiko 5659-276
• Seiko 5283-612
• Seiko 7190-989
• Seiko 3826-721
• Seiko 5673-709
• Seiko 7130-115