Seiko Cal. 5239 - 310

The Seiko 5239-310 represents an important milestone in Seiko's 1965 lineup. Powered by the 5239 caliber with 36j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-7c8f03de963c]

Also known as: Crown, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

12.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1965

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