Seiko Cal. 5666 - 665

The 5666-665 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-a43d6157ad91]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

8.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Green

Jewels

34j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1984

Related Models

• Seiko 4425-682
• Seiko 6348-852
• Seiko 6639-370
• Seiko 0797-463
• Seiko 3892-883
• Seiko 6121-576
• Seiko 0719-458
• Seiko 6210-286
• Seiko 4420-566
• Seiko 6154-634
• Seiko 4416-380
• Seiko 6657-811