Seiko Cal. 5677 - 521

The Seiko 5677-521 represents an important milestone in Seiko's 1977 lineup. It features a White dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-cdf583f5a4c7]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

8.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

White

Jewels

17j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1977

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