Seiko Cal. 6131 - 305

The 6131-305 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6131 caliber with 26j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-019b01df943b]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1994

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