Seiko Cal. 5631 - 521

This Kinetic model from 1985 features a 35mm Titanium case. The Coin-Edge bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-a6f8e1030679]

Also known as: Rally

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

35mm

Case Thickness

14.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

White

Jewels

34j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1985

Related Models

• Seiko 5689-438
• Seiko 6637-506
• Seiko 4589-355
• Seiko 7030-730
• Seiko 5616-601
• Seiko 6280-425
• Seiko 4564-901
• Seiko 4577-679
• Seiko 4470-359
• Seiko 6133-645
• Seiko 4487-510
• Seiko 4442-957