Seiko Cal. 7139 - 252

The 7139-252 is a sought-after Hand-Winding piece from Seiko's golden era. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-bc2cd6f2656d]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

White

Jewels

26j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1967

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