Seiko Cal. 6122 - 745

The Seiko 6122-745 represents an important milestone in Seiko's 1972 lineup. Powered by the 6122 caliber with 21j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-109844dca94b]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1972

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