Seiko Cal. 3878 - 923

The Seiko 3878-923 represents an important milestone in Seiko's 1982 lineup. Powered by the 3878 caliber with 30j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-1062be15c6dc]

Also known as: Pogue, UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

8.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

White

Jewels

30j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1982

Related Models

• Seiko 3897-715
• Seiko 5625-185
• Seiko 5256-167
• Seiko 6240-247
• Seiko 6222-562
• Seiko 5697-942
• Seiko 6665-928
• Seiko 5263-564
• Seiko 5281-479
• Seiko 7162-851
• Seiko 7113-158
• Seiko 5291-314