Seiko Cal. 4578 - 200

Released in 1966, the Cal. 4578 with design code 200 was part of Seiko's domestic market collection. Powered by the 4578 caliber with 29j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-3cbe8fa01e94]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

White

Jewels

29j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1966

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