Seiko Cal. 3863 - 671

This Spring Drive model from 1978 features a 36mm PVD Black case. It features a White dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-2d5b4ab9128f]

Also known as: Helmet, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

White

Jewels

24j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1978

Related Models

• Seiko 5260-289
• Seiko 4493-145
• Seiko 5255-512
• Seiko 6252-465
• Seiko 5246-399
• Seiko 7147-497
• Seiko 0756-337
• Seiko 6253-710
• Seiko 4463-505
• Seiko 0783-247
• Seiko 4486-267
• Seiko 6313-127