Seiko Cal. 5631 - 145

The 5631-145 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Champagne dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-06193e9341bc]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

12.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Champagne

Jewels

34j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1969

Related Models

• Seiko 6629-439
• Seiko 0717-256
• Seiko 6348-222
• Seiko 6695-547
• Seiko 7142-506
• Seiko 5632-224
• Seiko 6669-433
• Seiko 5658-316
• Seiko 4469-394
• Seiko 6293-573
• Seiko 7065-250
• Seiko 6332-663