Seiko Cal. 3870 - 256

The 3870-256 is a sought-after Solar piece from Seiko's golden era. With its 18mm lug width and 8.7mm profile, it sits comfortably on most wrists. [seikata-wm-466813af95d1]

Also known as: Emperor

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

42mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

White

Jewels

31j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1993

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