Seiko Cal. 7172 - 645

The 7172-645 is a sought-after Quartz piece from Seiko's golden era. Powered by the 7172 caliber with 24j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-ae8fdbaec1e8]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

24j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1999

Related Models

• Seiko 7023-571
• Seiko 6653-863
• Seiko 6334-836
• Seiko 6688-601
• Seiko 4493-283
• Seiko 6340-272
• Seiko 6360-157
• Seiko 4418-809
• Seiko 6358-957
• Seiko 6194-179
• Seiko 4481-922
• Seiko 0715-277