Seiko Cal. 7183 - 731

The 7183-731 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7183 caliber with 27j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-c9e3858a2947]

Also known as: UFO, Navigator

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Cream

Jewels

27j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1986

Related Models

• Seiko 7119-173
• Seiko 6643-280
• Seiko 6299-751
• Seiko 6629-359
• Seiko 7021-807
• Seiko 4588-633
• Seiko 4417-168
• Seiko 6161-640
• Seiko 7140-710
• Seiko 6363-774
• Seiko 0782-379
• Seiko 6648-225