Seiko Cal. 6391 - 634

The Seiko 6391-634 represents an important milestone in Seiko's 1998 lineup. It features a Green dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-239cdfe210b2]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

43mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1998

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