Seiko Cal. 6661 - 158

This Spring Drive model from 1982 features a 40mm Hardlex-Coated Steel case. It features a Burgundy dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-2f71278aba39]

Also known as: Turtle, Rally

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

24j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1982

Related Models

• Seiko 5285-750
• Seiko 6222-744
• Seiko 6178-685
• Seiko 7139-467
• Seiko 7049-949
• Seiko 5298-949
• Seiko 6622-755
• Seiko 6375-769
• Seiko 7053-359
• Seiko 0790-904
• Seiko 4445-497
• Seiko 6237-686