Seiko Cal. 5660 - 317

The Seiko 5660-317 represents an important milestone in Seiko's 1965 lineup. It features a Navy dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-c109a36a640d]

Also known as: Helmet, Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1965

Related Models

• Seiko 7096-145
• Seiko 7018-437
• Seiko 7145-642
• Seiko 3881-475
• Seiko 7014-746
• Seiko 4412-423
• Seiko 0799-213
• Seiko 5667-414
• Seiko 5244-566
• Seiko 3862-376
• Seiko 6374-826
• Seiko 3886-448