Seiko Cal. 5616 - 581

This Hand-Winding model from 1966 features a 46mm Gold-Plated case. Powered by the 5616 caliber with 35j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-7c785e0101bb]

Also known as: UFO, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1966

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