Seiko Cal. 7173 - 763

The 7173-763 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7173 caliber with 36j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-adf2c6fe302e]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Navy

Jewels

36j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1994

Related Models

• Seiko 5225-709
• Seiko 5648-797
• Seiko 6158-703
• Seiko 5657-563
• Seiko 7073-815
• Seiko 5619-986
• Seiko 5638-845
• Seiko 7067-755
• Seiko 6621-349
• Seiko 6147-507
• Seiko 6361-702
• Seiko 6615-105