Seiko Cal. 3866 - 311

The 3866-311 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Silver dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-95ad06c0dcaa]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1969

Related Models

• Seiko 4449-650
• Seiko 4536-324
• Seiko 6120-517
• Seiko 0761-609
• Seiko 5613-749
• Seiko 5233-967
• Seiko 6665-798
• Seiko 7053-196
• Seiko 3871-863
• Seiko 4427-351
• Seiko 0764-276
• Seiko 0777-828