Seiko Cal. 7163 - 647

The Seiko 7163-647 represents an important milestone in Seiko's 1971 lineup. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-6471af95b5af]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Silver

Jewels

20j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1971

Related Models

• Seiko 7053-406
• Seiko 0733-634
• Seiko 5619-430
• Seiko 6293-744
• Seiko 6269-469
• Seiko 4575-611
• Seiko 5672-891
• Seiko 6638-107
• Seiko 3883-511
• Seiko 7037-723
• Seiko 0720-862
• Seiko 6249-438