Seiko Cal. 6387 - 731

The Seiko 6387-731 represents an important milestone in Seiko's 1991 lineup. It features a Champagne dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-bd42ed26973a]

Also known as: Crown, Flighty

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

11.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Champagne

Jewels

26j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1991

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