Seiko Cal. 6380 - 646

The Seiko 6380-646 represents an important milestone in Seiko's 1973 lineup. It features a Black dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-6af2ab0afca3]

Also known as: Arnie, Flighty

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1973

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