Seiko Cal. 5638 - 812

This Spring Drive model from 1973 features a 38mm Gold-Plated case. It features a Burgundy dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-61c8a4efbeea]

Also known as: Bullhead, Crown

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

14.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Burgundy

Jewels

26j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1973

Related Models

• Seiko 7091-659
• Seiko 4535-625
• Seiko 6131-741
• Seiko 4491-939
• Seiko 4578-623
• Seiko 5645-295
• Seiko 6328-435
• Seiko 3827-681
• Seiko 4562-641
• Seiko 7089-196
• Seiko 5212-579
• Seiko 4414-178