Seiko Cal. 6398 - 340

The Seiko 6398-340 represents an important milestone in Seiko's 1968 lineup. It features a Champagne dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-35bf843f5528]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

13.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Champagne

Jewels

32j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1968

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