Seiko Cal. 5620 - 140

This Hand-Winding model from 1987 features a 39mm Hardlex-Coated Steel case. The Fixed bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-e4b150840323]

Also known as: Helmet, UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Green

Jewels

30j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1987

Related Models

• Seiko 7122-101
• Seiko 7197-120
• Seiko 5688-754
• Seiko 5256-758
• Seiko 4547-917
• Seiko 0781-518
• Seiko 7064-305
• Seiko 6227-110
• Seiko 4588-714
• Seiko 4538-715
• Seiko 4535-543
• Seiko 3857-925