Seiko Cal. 4591 - 820

The Seiko 4591-820 represents an important milestone in Seiko's 1997 lineup. The Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-85ffa2efdf22]

Also known as: UFO, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

28j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1997

Related Models

• Seiko 6396-111
• Seiko 3842-522
• Seiko 7071-140
• Seiko 6672-622
• Seiko 4549-652
• Seiko 6611-951
• Seiko 5289-828
• Seiko 4586-891
• Seiko 6671-289
• Seiko 6120-853
• Seiko 6354-120
• Seiko 4596-388