Seiko Cal. 7141 - 257

This Spring Drive model from 1970 features a 37mm PVD Black case. It features a Black dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-f5b40e19e131]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1970

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