Seiko Cal. 3888 - 637

This Spring Drive model from 1986 features a 34mm Gold-Plated case. It features a Cream dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-09a0e923ae6e]

Also known as: Helmet, Rally

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

28j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1986

Related Models

• Seiko 5267-363
• Seiko 0748-121
• Seiko 5692-128
• Seiko 4533-984
• Seiko 3856-335
• Seiko 0750-450
• Seiko 6185-622
• Seiko 5661-311
• Seiko 3830-266
• Seiko 4533-406
• Seiko 4447-954
• Seiko 6636-346