Seiko Cal. 3871 - 934

The 3871-934 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3871 caliber with 22j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-8577bf66ebea]

Also known as: Sumo, Helmet

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

White

Jewels

22j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1987

Related Models

• Seiko 4453-639
• Seiko 3896-143
• Seiko 6249-110
• Seiko 3887-745
• Seiko 6213-342
• Seiko 3865-213
• Seiko 6315-866
• Seiko 4426-886
• Seiko 6377-184
• Seiko 7085-406
• Seiko 7090-648
• Seiko 7042-965