Seiko Cal. 5640 - 739

This Kinetic model from 1976 features a 34mm Two-Tone case. It features a Cream dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-6221d2e60e9e]

Also known as: Navigator

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

28j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1976

Related Models

• Seiko 6368-909
• Seiko 0746-844
• Seiko 6669-729
• Seiko 3886-247
• Seiko 3876-887
• Seiko 4436-642
• Seiko 7082-903
• Seiko 5668-465
• Seiko 6662-390
• Seiko 4426-106
• Seiko 6147-188
• Seiko 4447-945