Seiko Cal. 6391 - 757

The Seiko 6391-757 represents an important milestone in Seiko's 1986 lineup. It features a Black dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-b7b8ae048fa0]

Also known as: Arnie, Flighty

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Black

Jewels

30j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1986

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