Seiko Cal. 7178 - 811

The 7178-811 is a sought-after Spring Drive piece from Seiko's golden era. With its 19mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-46bbb9b081ec]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1981

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