Seiko Cal. 5634 - 790

This Spring Drive model from 1979 features a 37mm Gold-Plated case. It features a Champagne dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-46be103f85e9]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

13.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Champagne

Jewels

17j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1979

Related Models

• Seiko 0740-102
• Seiko 6256-968
• Seiko 7017-293
• Seiko 7076-257
• Seiko 7174-654
• Seiko 4557-910
• Seiko 6325-197
• Seiko 5246-143
• Seiko 3898-884
• Seiko 4495-467
• Seiko 5243-684
• Seiko 6186-432