Seiko Cal. 5613 - 931

The 5613-931 is a sought-after Spring Drive piece from Seiko's golden era. It features a Silver dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-ca052667d4e7]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Silver

Jewels

32j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1992

Related Models

• Seiko 6299-540
• Seiko 4529-343
• Seiko 0726-693
• Seiko 6196-877
• Seiko 7023-542
• Seiko 7012-924
• Seiko 7026-117
• Seiko 4497-636
• Seiko 5683-457
• Seiko 7161-628
• Seiko 4439-624
• Seiko 4575-862