Seiko Cal. 6661 - 402

The 6661-402 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Burgundy dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-7252f18ed05b]

Also known as: Turtle

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Burgundy

Jewels

17j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1971

Related Models

• Seiko 6312-543
• Seiko 6341-525
• Seiko 5679-538
• Seiko 6368-690
• Seiko 7091-934
• Seiko 6179-258
• Seiko 4463-454
• Seiko 6286-758
• Seiko 6315-128
• Seiko 7096-947
• Seiko 5651-401
• Seiko 4411-511