Seiko Cal. 3840 - 263

The 3840-263 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 3840 caliber with 30j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-34a2c2f8862d]

Also known as: Turtle, Navigator

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

60m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1969

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