Seiko Cal. 6663 - 137

This Kinetic model from 1971 features a 44mm Titanium case. It features a White dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-be1c8ded57c0]

Also known as: Monster, World Timer

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

44mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

White

Jewels

18j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1971

Related Models

• Seiko 7141-798
• Seiko 5219-295
• Seiko 5635-864
• Seiko 7078-192
• Seiko 5699-506
• Seiko 7125-781
• Seiko 6144-886
• Seiko 4535-581
• Seiko 4569-240
• Seiko 6144-470
• Seiko 7041-523
• Seiko 6158-457