Seiko Cal. 3840 - 827

The 3840-827 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3840 caliber with 30j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-abfe6cd29b94]

Also known as: Rally, Golden Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

9.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1990

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