Seiko Cal. 5660 - 377

This Automatic model from 1991 features a 37mm Hardlex-Coated Steel case. It features a Green dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-7a78e03e2085]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Green

Jewels

34j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1991

Related Models

• Seiko 5285-827
• Seiko 4441-120
• Seiko 3839-937
• Seiko 6185-434
• Seiko 3823-324
• Seiko 4543-489
• Seiko 3841-103
• Seiko 4595-341
• Seiko 7071-260
• Seiko 6629-604
• Seiko 7175-852
• Seiko 5671-837