Seiko Cal. 6381 - 748

Seiko 6381-748

The Seiko 6381-748 represents an important milestone in Seiko's 1973 lineup. Powered by the 6381 caliber with 20j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-053a60b703c2]

Also known as: Sumo

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
36mm
Case Thickness
9.9mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
140m
Dial Color
Black
Jewels
20j
Frequency
28,800 bph
Power Reserve
69 hours
Year
1973

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seikata-wm-053a60b703c2