Seiko Cal. 5661 - 602

The Seiko 5661-602 represents an important milestone in Seiko's 1966 lineup. Powered by the 5661 caliber with 36j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-e4fb4d745b8a]

Also known as: Bullhead, Navigator

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

Silver

Jewels

36j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1966

Related Models

• Seiko 6626-739
• Seiko 4491-707
• Seiko 6282-243
• Seiko 0766-658
• Seiko 6243-173
• Seiko 7080-530
• Seiko 6245-886
• Seiko 0751-404
• Seiko 7168-959
• Seiko 5220-180
• Seiko 0738-855
• Seiko 4510-203