Seiko Cal. 7158 - 636

This Spring Drive model from 1965 features a 45mm Hardlex-Coated Steel case. The Bidirectional bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-e28919804fdc]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Champagne

Jewels

25j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1965

Related Models

• Seiko 4555-643
• Seiko 4468-368
• Seiko 4595-835
• Seiko 4523-748
• Seiko 3876-383
• Seiko 4468-692
• Seiko 6330-742
• Seiko 3812-720
• Seiko 6295-495
• Seiko 7120-346
• Seiko 7080-679
• Seiko 6216-497