Seiko Cal. 6178 - 684

The Seiko 6178-684 represents an important milestone in Seiko's 1966 lineup. It features a Silver dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-92d88b83d528]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Silver

Jewels

35j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1966

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