Seiko Cal. 5257 - 509

The 5257-509 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-2039918b6b10]

Also known as: Bullhead, Silverwave

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Green

Jewels

29j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1979

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