Seiko Cal. 3878 - 686

The 3878-686 is a sought-after Solar piece from Seiko's golden era. It features a Green dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-610be01db312]

Also known as: Turtle, Golden Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

37mm

Case Thickness

12.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1980

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