Seiko Cal. 7078 - 321

The Seiko 7078-321 represents an important milestone in Seiko's 1967 lineup. It features a Black dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-03386e9d75df]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1967

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