Seiko Cal. 5666 - 501

The 5666-501 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-ba3c392d2cb6]

Also known as: Helmet, Silverwave

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

11.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1995

Related Models

• Seiko 6698-273
• Seiko 6677-516
• Seiko 3872-310
• Seiko 3897-563
• Seiko 6339-737
• Seiko 4445-632
• Seiko 5249-335
• Seiko 6245-513
• Seiko 6267-648
• Seiko 3873-451
• Seiko 5688-652
• Seiko 4448-802