Seiko Cal. 6398 - 340

The 6398-340 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6398 caliber with 27j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-ca638cf774a1]

Also known as: Shogun

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Silver

Jewels

27j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1968

Related Models

• Seiko 7168-811
• Seiko 3889-516
• Seiko 7065-818
• Seiko 6117-852
• Seiko 0744-859
• Seiko 7159-493
• Seiko 5282-998
• Seiko 0730-811
• Seiko 3852-280
• Seiko 7163-603
• Seiko 7157-941
• Seiko 7059-116