Seiko Cal. 5657 - 206

The Seiko 5657-206 represents an important milestone in Seiko's 1977 lineup. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-c9ba2fdf2f6b]

Also known as: Navigator, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

43mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Green

Jewels

36j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1977

Related Models

• Seiko 6162-704
• Seiko 0714-831
• Seiko 6316-908
• Seiko 6286-707
• Seiko 4581-442
• Seiko 7053-731
• Seiko 7184-715
• Seiko 3870-593
• Seiko 5655-293
• Seiko 3896-271
• Seiko 5641-517
• Seiko 7038-999