Seiko Cal. 3870 - 786

The 3870-786 is a sought-after Solar piece from Seiko's golden era. Powered by the 3870 caliber with 18j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-3f98d8a2c02d]

Also known as: Flighty

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

46mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

18j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1971

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