Seiko Cal. 6146 - 686

This Spring Drive model from 1979 features a 46mm Two-Tone case. It features a Silver dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-4125e10a1729]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Silver

Jewels

33j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1979

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