Seiko Cal. 6630 - 354

The Seiko 6630-354 represents an important milestone in Seiko's 1975 lineup. It features a White dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-fe59b5fb3678]

Also known as: Shogun, Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

White

Jewels

25j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1975

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