Seiko Cal. 5645 - 623

The Seiko 5645-623 represents an important milestone in Seiko's 1997 lineup. The Coin-Edge bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-1e2ac0076592]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1997

Related Models

• Seiko 6331-141
• Seiko 6160-525
• Seiko 6164-832
• Seiko 5674-511
• Seiko 6371-272
• Seiko 5645-902
• Seiko 7110-114
• Seiko 7088-649
• Seiko 6218-237
• Seiko 6245-459
• Seiko 4464-445
• Seiko 5618-435