Seiko Cal. 3870 - 780

The 3870-780 is a sought-after Spring Drive piece from Seiko's golden era. It features a White dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-adb8ec6a248c]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

White

Jewels

33j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1969

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