Seiko Cal. 7181 - 311

The 7181-311 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7181 caliber with 18j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-8e381ecb421e]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Black

Jewels

18j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1979

Related Models

• Seiko 6372-987
• Seiko 7142-146
• Seiko 7072-253
• Seiko 4495-726
• Seiko 0725-116
• Seiko 6370-963
• Seiko 6284-914
• Seiko 6267-949
• Seiko 6675-439
• Seiko 5642-194
• Seiko 6125-148
• Seiko 5691-394