Seiko Cal. 6381 - 878

The 6381-878 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6381 caliber with 26j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-8c20e5064f67]

Also known as: Monster, UFO

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Cream

Jewels

26j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1989

Related Models

• Seiko 6257-691
• Seiko 6313-165
• Seiko 7088-707
• Seiko 6648-740
• Seiko 5292-351
• Seiko 0772-931
• Seiko 5247-270
• Seiko 6621-536
• Seiko 4581-302
• Seiko 3813-858
• Seiko 7082-357
• Seiko 6128-836