Seiko Cal. 3874 - 680

The Seiko 3874-680 represents an important milestone in Seiko's 1994 lineup. Powered by the 3874 caliber with 21j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-169f4e6539d0]

Also known as: Helmet, UFO

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

14.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1994

Related Models

• Seiko 6368-695
• Seiko 4436-246
• Seiko 5659-388
• Seiko 3850-120
• Seiko 5624-386
• Seiko 6688-480
• Seiko 6336-611
• Seiko 6366-774
• Seiko 3858-981
• Seiko 5248-297
• Seiko 6224-945
• Seiko 7163-873