Seiko Cal. 4556 - 992

The 4556-992 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Acrylic crystal and offers 200m of water resistance. [seikata-wm-05aa31517c1e]

Also known as: Helmet, Arnie

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

14.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1984

Related Models

• Seiko 5246-233
• Seiko 6678-260
• Seiko 3898-479
• Seiko 6337-977
• Seiko 4423-485
• Seiko 6627-586
• Seiko 5258-762
• Seiko 5635-377
• Seiko 6134-617
• Seiko 6323-860
• Seiko 3859-378
• Seiko 6669-435