Seiko Cal. 3872 - 138

Seiko 3872-138

The Seiko 3872-138 represents an important milestone in Seiko's 1984 lineup. Powered by the 3872 caliber with 22j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-544c7b50474a]

Also known as: Bullhead, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
38mm
Case Thickness
14.0mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
190m
Dial Color
Burgundy
Jewels
22j
Frequency
36,000 bph
Power Reserve
41 hours
Year
1984

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