Seiko Cal. 3840 - 263

The 3840-263 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3840 caliber with 30j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-5c4f7fe17810]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

42mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Silver

Jewels

30j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1999

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