Seiko Cal. 0745 - 509

This Automatic model from 1968 features a 37mm Stainless Steel case. Powered by the 0745 caliber with 26j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-5f9100b301cd]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

26j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1968

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