Seiko Cal. 6310 - 735

The 6310-735 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6310 caliber with 26j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-63f3070d8ac4]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

26j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1968

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