Seiko Cal. 6139 - 764

The Seiko 6139-764 represents an important milestone in Seiko's 1996 lineup. It features a Silver dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-cef7722e1ad9]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Silver

Jewels

17j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1996

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