Seiko Cal. 6257 - 646

The Seiko 6257-646 represents an important milestone in Seiko's 1979 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-11c20412527d]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

44mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1979

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