Seiko Cal. 6257 - 331

The 6257-331 is a sought-after Kinetic piece from Seiko's golden era. It features a Silver dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-00ecc9438b1c]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

13.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

170m

Dial Color

Silver

Jewels

28j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1968

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