Seiko Cal. 7181 - 338

Seiko 7181-338

The Seiko 7181-338 represents an important milestone in Seiko's 1966 lineup. Powered by the 7181 caliber with 23j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-203960b5529d]

Also known as: Turtle, Baby Tuna

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
10.3mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
150m
Dial Color
Green
Jewels
23j
Frequency
21,600 bph
Power Reserve
36 hours
Year
1966

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seikata-wm-203960b5529d