Seiko Cal. 7148 - 633

This Hand-Winding model from 1966 features a 38mm Two-Tone case. It features a Silver dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-442b2c5b06ad]

Also known as: Sumo, Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

9.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

170m

Dial Color

Silver

Jewels

31j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1966

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