Seiko Cal. 7163 - 231

The Seiko 7163-231 represents an important milestone in Seiko's 1975 lineup. Powered by the 7163 caliber with 26j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-c4cbf9112a5a]

Also known as: Monster, Shogun

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1975

Related Models

• Seiko 4546-890
• Seiko 6243-173
• Seiko 6695-111
• Seiko 4431-723
• Seiko 3820-909
• Seiko 7095-771
• Seiko 7050-287
• Seiko 7055-489
• Seiko 3866-938
• Seiko 4558-686
• Seiko 5611-457
• Seiko 6147-444