Seiko Cal. 7178 - 163

The 7178-163 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-d048b2ae2ddf]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1975

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