Seiko Cal. 6371 - 637

The Seiko 6371-637 represents an important milestone in Seiko's 1997 lineup. It features a Cream dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-335004606663]

Also known as: Sumo, Bellmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Cream

Jewels

23j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1997

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