Seiko Cal. 6395 - 440

The 6395-440 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6395 caliber with 33j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-6778d545dea8]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

8.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1975

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