Seiko Cal. 5277 - 316

This Hand-Winding model from 1978 features a 44mm Two-Tone case. Powered by the 5277 caliber with 35j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-04da3ce29fe7]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

13.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Cream

Jewels

35j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1978

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