Seiko Cal. 5678 - 669

This Hand-Winding model from 1970 features a 44mm Two-Tone case. Powered by the 5678 caliber with 25j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-cfed0dceb11b]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

25j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1970

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