Seiko Cal. 3871 - 740

The 3871-740 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Silver dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-68376c48f5c4]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1980

Related Models

• Seiko 5236-148
• Seiko 4476-722
• Seiko 6159-647
• Seiko 4458-615
• Seiko 6121-458
• Seiko 7138-935
• Seiko 5299-401
• Seiko 6337-814
• Seiko 5636-230
• Seiko 7045-647
• Seiko 6231-547
• Seiko 4492-100