Seiko Cal. 5666 - 159

The Seiko 5666-159 represents an important milestone in Seiko's 1971 lineup. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-867494a27ab4]

Also known as: Bullhead, Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Green

Jewels

29j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1971

Related Models

• Seiko 5278-248
• Seiko 6161-302
• Seiko 3893-515
• Seiko 5241-345
• Seiko 5223-638
• Seiko 3854-131
• Seiko 5297-911
• Seiko 7089-872
• Seiko 5255-687
• Seiko 7070-539
• Seiko 6289-703
• Seiko 6683-775