Seiko Cal. 6637 - 454

This Kinetic model from 1971 features a 36mm Hardlex-Coated Steel case. The Fixed bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-43996ac7c424]

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1971

Related Models

• Seiko 7115-740
• Seiko 4474-226
• Seiko 5293-298
• Seiko 5298-713
• Seiko 0725-838
• Seiko 3861-937
• Seiko 4458-813
• Seiko 3863-832
• Seiko 6617-237
• Seiko 5296-920
• Seiko 0721-379
• Seiko 6378-372