Seiko Cal. 3815 - 978

The 3815-978 is a sought-after Solar piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-b2626f1f5d07]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

37mm

Case Thickness

14.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

26j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1991

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