Seiko Cal. 7187 - 364

The Seiko 7187-364 represents an important milestone in Seiko's 1971 lineup. It features a Green dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-0c9843c38982]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1971

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