Seiko Cal. 6257 - 690

The 6257-690 is a sought-after Spring Drive piece from Seiko's golden era. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-e2ba3616ba82]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Burgundy

Jewels

19j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1966

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