Seiko Cal. 6357 - 687

The Seiko 6357-687 represents an important milestone in Seiko's 1997 lineup. Powered by the 6357 caliber with 27j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-191ff526473b]

Also known as: Crown, Baby Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

34mm

Case Thickness

8.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

27j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1997

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