Seiko Cal. 6340 - 256

The 6340-256 is a sought-after Spring Drive piece from Seiko's golden era. With its 19mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-7dcdf436eda4]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

13.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

70m

Dial Color

Burgundy

Jewels

17j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1978

Related Models

• Seiko 4471-543
• Seiko 7138-669
• Seiko 5299-280
• Seiko 5284-784
• Seiko 5649-104
• Seiko 5252-397
• Seiko 5287-308
• Seiko 3814-568
• Seiko 7072-445
• Seiko 5636-200
• Seiko 7169-342
• Seiko 7177-717