Seiko Cal. 3841 - 721

Seiko 3841-721

The 3841-721 is a sought-after Automatic piece from Seiko's golden era. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-2f7dd6f099ba]

Also known as: UFO

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
40mm
Case Thickness
10.0mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
30m
Dial Color
Navy
Jewels
21j
Frequency
21,600 bph
Power Reserve
42 hours
Year
1967

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