Seiko Cal. 6340 - 645

The Seiko 6340-645 represents an important milestone in Seiko's 1997 lineup. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-144ae616a7eb]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1997

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