Seiko Cal. 5231 - 978

This Hand-Winding model from 1978 features a 35mm Gold-Plated case. It features a Black dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-7474669f7135]

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

12.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1978

Related Models

• Seiko 3864-306
• Seiko 6297-405
• Seiko 6667-283
• Seiko 4552-612
• Seiko 6396-814
• Seiko 6659-400
• Seiko 7047-262
• Seiko 7014-668
• Seiko 5675-290
• Seiko 5673-357
• Seiko 6250-233
• Seiko 6335-567