Seiko Cal. 6398 - 157

The 6398-157 is a sought-after Spring Drive piece from Seiko's golden era. It features a Champagne dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-376989f1645f]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

11.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

180m

Dial Color

Champagne

Jewels

24j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1995

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