Seiko Cal. 0781 - 137

Seiko 0781-137

The Seiko 0781-137 represents an important milestone in Seiko's 1996 lineup. Powered by the 0781 caliber with 36j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-0e13b83b35d2]

Also known as: Sumo, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
41mm
Case Thickness
8.2mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
40m
Dial Color
Silver
Jewels
36j
Frequency
28,800 bph
Power Reserve
37 hours
Year
1996

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