Seiko Cal. 6257 - 420

The 6257-420 is a sought-after Automatic piece from Seiko's golden era. The Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-dff10cd468e6]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

38mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

110m

Dial Color

Green

Jewels

33j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1991

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