Seiko Cal. 6397 - 816

The 6397-816 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-8d481bed44cc]

Also known as: Bullhead, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

11.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Black

Jewels

17j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1968

Related Models

• Seiko 7078-925
• Seiko 6174-402
• Seiko 5288-730
• Seiko 4513-538
• Seiko 6243-340
• Seiko 5215-600
• Seiko 6371-802
• Seiko 5633-126
• Seiko 5692-531
• Seiko 6157-770
• Seiko 0746-864
• Seiko 5267-704