Seiko Cal. 3840 - 121

The 3840-121 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3840 caliber with 25j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-14171d923be8]

Also known as: Panda

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1992

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