Seiko Cal. 7177 - 161

Released in 1978, the Cal. 7177 with design code 161 was part of Seiko's domestic market collection. It features a Black dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-353be75971ac]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1978

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