Seiko Cal. 3880 - 666

The 3880-666 is a sought-after Spring Drive piece from Seiko's golden era. It features a Navy dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-1890818932ac]

Also known as: Tuna, Arnie

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1967

Related Models

• Seiko 5644-724
• Seiko 4522-333
• Seiko 4512-986
• Seiko 5283-880
• Seiko 5215-757
• Seiko 4424-116
• Seiko 7092-274
• Seiko 6632-107
• Seiko 6111-119
• Seiko 6393-141
• Seiko 6619-800
• Seiko 6181-682