Seiko Cal. 7186 - 540

The Seiko 7186-540 represents an important milestone in Seiko's 1974 lineup. It features a Silver dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-d17b4f301f82]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

34mm

Case Thickness

13.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Silver

Jewels

22j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1974

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