Seiko Cal. 3878 - 971

This Hand-Winding model from 1984 features a 39mm Stainless Steel case. With its 21mm lug width and 8.3mm profile, it sits comfortably on most wrists. [seikata-wm-f5a8a06eb213]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1984

Related Models

• Seiko 5687-412
• Seiko 6275-433
• Seiko 6119-718
• Seiko 4412-613
• Seiko 4479-352
• Seiko 0722-339
• Seiko 6244-771
• Seiko 5675-660
• Seiko 7145-255
• Seiko 3890-210
• Seiko 7111-496
• Seiko 6678-358