Seiko Cal. 6320 - 328

The Seiko 6320-328 represents an important milestone in Seiko's 1978 lineup. It features a Black dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-6395685afcd2]

Also known as: Helmet, Crown

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

13.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1978

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