Seiko Cal. 3871 - 694

The 3871-694 is a sought-after Spring Drive piece from Seiko's golden era. With its 19mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-726f4fb6ba6b]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1967

Related Models

• Seiko 6679-558
• Seiko 5277-461
• Seiko 4587-272
• Seiko 7057-358
• Seiko 4534-785
• Seiko 3831-554
• Seiko 7165-512
• Seiko 6195-911
• Seiko 6689-407
• Seiko 0779-652
• Seiko 7199-294
• Seiko 6192-642