Seiko Cal. 3840 - 429

Released in 1991, the Cal. 3840 with design code 429 was part of Seiko's domestic market collection. Powered by the 3840 caliber with 36j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-8ef8402dcfe0]

Also known as: Monster, UFO

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

43mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Green

Jewels

36j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1991

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